Secure your premises and concentrate on doing business.

If you're in business, the last thing you want to be worrying about is people having unauthorised access to your premises.

That's why you should consider installing a Restricted Master Key System. Restricted Master Keying means you have total control over access to your business:

  • employees can only go where you want them to
  • business owners have total access with a single key
  • only authorised personnel can have restricted keys cut
  • key manager software makes it easy to keep track of your keys

At I.O.S. Locksmiths, we have over 23 years experience in installing and maintaining Restricted Master Key Systems. Don't trust your security to just anyone - talk to a locksmith who gets the job done right.


Who should have a Restricted Master Key System?

  • Apartment Complexes and Commercial Buildings - make sure the right people have access to the right areas.
  • Factories and Warehouses - keep your expensive equipment and stock secure.
  • Schools - make sure staff and students are protected from unwanted intruders.
  • Restaurants and Cafés - new owners? Then get the keys changed!
  • Business of every kind, including those with electronic security systems. Don't be like the major company that was unable to lock the doors to its head office when its fire panel shut down! Technology can fail. Keys can't. You need a backup.


Need the best security you can get? Then you need EVVA.

I.O.S. Locksmiths is an elite agent for EVVA Restricted Key Systems .


EVVA is one of the most high-security key systems available. It includes patented technology to resist the increasingly prevalent illegal entry technique known as "lock bumping". If you need the best, you need EVVA.

EVVA DPS is SEC endorsed as intruder resistant when installed with intruder resistant locks and padlocks.


Security, quality, experience: get it all from I.O.S. Locksmiths.

As well as installing and maintaining Restricted Master Key Systems, I.O.S. Locksmiths provide everything you need from a commercial locksmith, including:

  • commercial grade locks, door furniture and door closers
  • locks and replacement keys for filing cabinets, compactuses and display cabinets
  • Locks serviced and repaired
  • Locks re-keyed and keyed alike
  • Safes supplied, installed and re-coded
  • Bolt-cutter resistant padlocks


For a professional locksmith who can secure your premises and let you get on with doing business, call us 24/7 on 0418 542 551.